Home / 2,240.82-3,360.96-1,418.40

Finding the Fourth Proportional to 2,240.82, 3,360.96 and 1,418.40

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Solution

The fourth proportional to 2,240.82, 3,360.96 and 1,418.40 is: 2,127.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.82 : 3,360.96 = 1,418.40 : x
  2. Step 2: Convert to fraction form
    2,240.82/3,360.96 = 1,418.40/x
  3. Step 3: Cross multiply
    2,240.82x = 3,360.96 × 1,418.40
  4. Step 4: Simplify right side
    2,240.82x = 4,767,185.66
  5. Step 5: Solve for x
    x = 4,767,185.66/2,240.82
  6. Step 6: Final answer
    x = 2,127.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.